ES8501911A1 - Device for zeroing signal sources, especially sensor arrangements. - Google Patents
Device for zeroing signal sources, especially sensor arrangements.Info
- Publication number
- ES8501911A1 ES8501911A1 ES531217A ES531217A ES8501911A1 ES 8501911 A1 ES8501911 A1 ES 8501911A1 ES 531217 A ES531217 A ES 531217A ES 531217 A ES531217 A ES 531217A ES 8501911 A1 ES8501911 A1 ES 8501911A1
- Authority
- ES
- Spain
- Prior art keywords
- zero
- signal
- transducer
- null
- control loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
- G01D3/063—Comparing the measuring value with a reference value which periodically or incidentally scans the measuring range
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
To zero or reference-set or null-set a signal source, typically a distance or rotary angle transducer (10), a closed control loop (11, 12, 13) is connected in the output (E) from the signal source, which includes feedback of the system output signal (A) and comparison thereof with a reference or null or zero-set signal (W) when the signal source or transducer is at the reference position, the closed control loop including a correction element (11), such as an adder, to correct the zero or null-set signal derived from the signal source in accordance with the operation of the control loop. This eliminates individual adjustment of the zero or null-set of the signal source, reducing costs and increasing accuracy of the zero or null-set. The correction signal is introduced at the time the signal source or transducer is at a zero or reference position, or the transducer can be preset to provide, initially, a signal which requires correction, and a diode (15) is introduced in the control loop so that the correction signal is effective only in one direction, thus permitting deviation of the transducer from its zero or reference position and not requiring a special switch (14) which renders effective the control loop when the transducer (10) is at the zero or reference position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833312027 DE3312027A1 (en) | 1983-04-02 | 1983-04-02 | DEVICE FOR ZERO-POINT ADJUSTMENT OF SIGNAL SOURCES, IN PARTICULAR SENSOR ARRANGEMENTS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8501911A1 true ES8501911A1 (en) | 1984-12-01 |
| ES531217A0 ES531217A0 (en) | 1984-12-01 |
Family
ID=6195358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES531217A Granted ES531217A0 (en) | 1983-04-02 | 1984-04-02 | IMPROVEMENTS IN A DEVICE FOR THE ADJUSTMENT OF THE ZERO POINT OF SIGNAL SOURCES ESPECIALLY OF TRANSMITTER SETS |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4612450A (en) |
| EP (1) | EP0126867B1 (en) |
| JP (1) | JPS59186098A (en) |
| BR (1) | BR8401486A (en) |
| DE (2) | DE3312027A1 (en) |
| ES (1) | ES531217A0 (en) |
| MX (1) | MX157247A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742592C2 (en) * | 1987-12-16 | 1998-12-03 | Pierburg Ag | Method for taring a position feedback signal value |
| DE4023725A1 (en) * | 1990-07-26 | 1992-02-27 | Eckardt Ag | Measured value signalisation system - with interruption or short-circuit of measuring lines at measuring device |
| JP4091671B2 (en) * | 1995-08-08 | 2008-05-28 | 松下電器産業株式会社 | DC offset compensator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125789A (en) * | 1977-06-07 | 1978-11-14 | Sundstrand Corporation | Biasing and scaling circuit for transducers |
| GB2009545B (en) * | 1977-12-01 | 1982-09-02 | Wdm Ltd | Apparatus and method providing adigital output from a displacement transducer |
| DE2841583A1 (en) * | 1978-09-25 | 1980-04-03 | Siemens Ag | Automatic monitoring of measuring transducer - involves discriminator circuit which detects signal between certain limits and initiates correction |
| US4263555A (en) * | 1979-06-15 | 1981-04-21 | Rca Corporation | Signal detection system |
| DE3206192A1 (en) * | 1982-02-20 | 1983-09-01 | Datron-Electronic Pichl & Schulte KG, 6109 Mühltal | Method and device for automatic null correction in measuring devices |
-
1983
- 1983-04-02 DE DE19833312027 patent/DE3312027A1/en not_active Ceased
-
1984
- 1984-03-08 DE DE8484102470T patent/DE3482674D1/en not_active Expired - Lifetime
- 1984-03-08 EP EP19840102470 patent/EP0126867B1/en not_active Expired - Lifetime
- 1984-03-09 US US06/587,499 patent/US4612450A/en not_active Expired - Fee Related
- 1984-03-19 JP JP59051255A patent/JPS59186098A/en active Pending
- 1984-03-28 MX MX200820A patent/MX157247A/en unknown
- 1984-03-30 BR BR8401486A patent/BR8401486A/en not_active IP Right Cessation
- 1984-04-02 ES ES531217A patent/ES531217A0/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3312027A1 (en) | 1984-11-15 |
| MX157247A (en) | 1988-11-08 |
| EP0126867A3 (en) | 1987-10-07 |
| JPS59186098A (en) | 1984-10-22 |
| BR8401486A (en) | 1985-02-26 |
| US4612450A (en) | 1986-09-16 |
| EP0126867A2 (en) | 1984-12-05 |
| EP0126867B1 (en) | 1990-07-11 |
| DE3482674D1 (en) | 1990-08-16 |
| ES531217A0 (en) | 1984-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19960603 |